update-shown in drscheme:unit:frame

This method is intended to be overridden. It's job is to update the "View" menu to match the state of the visible windows. In the case of the standard DrScheme window, it change the menu items to reflect the visibility of the definitions and interaction editor-canvas%s.

Call this method whenever the state of the show menu might need to change.

See also get-show-menu.

• (send a-drscheme:unit:frame update-shown) -> void

  Updates the interactions, definitions, and contour menu items based on the contents of the windows.